package com.atguigu.gulimall.auth.controller;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.TypeReference;
import com.atguigu.common.utils.HttpUtils;
import com.atguigu.common.utils.R;
import com.atguigu.common.vo.MemberResponseVo;
import com.atguigu.gulimall.auth.feign.MemberFeignService;
import com.atguigu.gulimall.auth.vo.SocialUser;
import jdk.nashorn.internal.objects.annotations.Getter;
import lombok.extern.slf4j.Slf4j;
import org.apache.http.HttpResponse;
import org.apache.http.util.EntityUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;

import javax.servlet.http.HttpSession;
import java.util.HashMap;
import java.util.Map;

@Slf4j
@Controller
public class OAuth2Controller {
    @Autowired
    private MemberFeignService memberFeignService;

    @GetMapping(value = "/oauth2.0/weibo/success")
    public String weibo(@RequestParam("code") String code, HttpSession httpSession) throws Exception {
        Map<String, String> map = new HashMap<>();
        map.put("client_id", "2077705774");
        map.put("client_secret", "40af02bd1c7e435ba6a6e9cd3bf799fd");
        map.put("grant_type", "authorization_code");
        map.put("redirect_uri", "http://auth.gulimall.com/oauth2.0/weibo/success");
        map.put("code", code);
        //1、根据用户授权返回的code换取access_token
        HttpResponse response = HttpUtils.doPost("https://api.weibo.com", "/oauth2/access_token", "post", new HashMap<>(), map, new HashMap<>());
        //2、处理
        /**
         * {
         *     "access_token": "2.00jMNC9I9LqbQCbc3534e2c10C2kwz",
         *     "remind_in": "98008",
         *     "expires_in": 98008,
         *     "uid": "7743327481",
         *     "isRealName": "true"
         * }
         */
        if (response.getStatusLine().getStatusCode() == 200) {
            //获取access_token 转为通用的社交登录对象
            String json = EntityUtils.toString(response.getEntity());
            //String json = JSON.toJSONString(response.getEntity());
            SocialUser socialUser = JSON.parseObject(json, SocialUser.class);
            //知道了哪个社交用户
            //1)、当前用户如果是第一次进网站,自动注册进来（为当前社交用户生成一个会员信息,以后这个社交账号就对应指定的会员）
            //登录或者注册这个社交用户
            System.out.println(socialUser.getAccess_token());
            //调用远程服务
            R oauthLogin = memberFeignService.oauthLogin(socialUser);
            if (oauthLogin.getCode() == 0) {
                System.out.println("调用远程服务");

                MemberResponseVo data = (MemberResponseVo) oauthLogin.getData("data",new TypeReference<MemberResponseVo>(){});
                log.info("登录成功:用户信息：{}",data.toString());
                //session 不能跨域，服务器
                //TODO 1、默认发的令牌,session ....  作用域,当前域:(解决子域共享问题)
                //TODO 2、使用JSON的序列化方式来序列化对象数据到redis中
                httpSession.setAttribute("loginUser",data);
                //2、登录成功跳回首页
                return "redirect:http://gulimall.com";
            } else {
                return "redirect:http://auth.gulimall.com/login.html";
            }
        } else {
            return "redirect:http://auth.gulimall.com/login.html";
        }
    }
}
